Swirl flow generation device, swirl flow generation method, gas phase generation device, fine bubble generation device, fluid mixing device, fluid injection nozzle

摘要

Provided are a swirl flow generation device, a swirl flow generation method, a gas phase generation device, a fine bubble generation device, a fluid mixing device, and a fluid injection nozzle that can efficiently generate a high-speed swirl flow in accordance with any fluid. To do. A casing provided with a cylindrical space portion having at least one end opened and a fluid introduction path opened on an inner peripheral surface of the cylindrical space portion; and disposed in the cylindrical space portion of the casing, and at least of the cylindrical space portion A cylindrical space portion having an end in a direction that coincides with the opening direction, and a cylindrical member having a hole portion that opens in a peripheral wall of the cylindrical space portion, and the liquid fluid introduced from the fluid introduction path is A swirling flow is generated by flowing into the cylindrical space portion of the cylindrical member through the casing and flowing out from the casing and the cylindrical member.